US5086858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air intake system for utility vehicle
Assignee: Kawasaki Motors Ltd
•
Filing: 1990-12-03
•
Granted: 1992-02-11
•
Expires: 2010-12-03
Abstract
Abstract An air intake system for a utility vehicle powered by an engine (8) located near the driver's seat (6) and which drives one or more wheels (3) of the vehicle via a belt converter (13) comprises a hollow open ended and generally rectangular frame (10) disposed with one of its lower ends (10a) connected to the air intake (Ie) of the engine and the other lower end (10b) connected to the air intake (Ib) port (22) for cooling the belt converter, and an air intake (S) in an upper part of the frame. Such a system results in less dust and dirt being drawn into the air intakes and reduces air pulsing and thereby improves engine performance.
Inventors
- 👤 Fumio Mizuta
- 👤 Takashi Arii
- 👤 Yoshiharu Matsuda
- 👤 Itsuo Takegami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:55
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10006; F02M35/10013; B; B60; B60K; B60K11/00; B60K11/06; B60K13/00; B60K13/06; F02M35/10091; F02M35/10137; F02M35/16; F02M35/162
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
An air intake system for a utility vehicle including an engine, a driver's seat, at least one wheel, and a belt converter all being mounted on said vehicle, said engine being located near said driver's seat and powering said wheels via said belt converter, said engine having a combustion air intake and said converter having a cooling air intake, said air intake system comprising a hollow open ended and generally rectangular frame disposed vertically behind said seat, said frame having first and second lower ends, said first lower end being connected to said combustion air intake of said engine and said second lower end being connected to said cooling air intake of said belt converter, said frame further being provided with an upper air intake, a first air passage connected between said upper air intake and said first lower end, and a second air passage connected between said upper air intake and said second lower end.
Claim 2
Dependent Claim
156 words
An air intake system for a utility vehicle including an engine, a driver's seat, at least one wheel, and a belt converter all being mounted on said vehicle, said engine being located near said driver's seat and powering said wheels via said belt converter, said engine having a combustion air intake and said converter having a cooling air intake, said air intake system comprising a hollow open ended and generally rectangular frame disposed vertically behind said seat, said frame having first and second lower ends, said first lower end being connected to said combustion air intake of said engine and said second lower end being connected to said cooling air intake of said belt converter, said frame further being provided with an upper air intake, a first air passage connected between said upper air intake and said first lower end, and a second air passage connected between said upper air intake and said second lower end.
Claim 3
Dependent Claim
37 words
An air intake system as set forth in claim 1, wherein said frame further includes first and second air intakes connected respectively to said first and second air passages, said first and second air intakes being connected.
Claim 4
Dependent Claim
24 words
An air intake system as set forth in claim 2, wherein said first and second air intakes are connected at said upper air intake.
Claim 5
Dependent Claim
22 words
An air intake system as set forth in claim 3, wherein said upper air intake is above said seat and faces downwardly.
Claim 6
Dependent Claim
66 words
An air intake system as set forth in claim 1, wherein said engine produces a series of first air pulses in said first air passage and wherein said belt converter produces a series of second air pulses in said second air passage, said first and second passages being connected to produce interference between said first and second series of pulses of said first and second passages.
References Cited (Backward Citations)
US2250795A
Cited
US2319002A
Cited
DE2212016A1
Cited
DE2715760A1
Cited
US4606422A
Cited
JPS62163363A
Cited
JPS63202579A
Cited
JPS649727A
Cited
JPH0283183A
Cited
US4971172A
Cited
US4932490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-10 | 1995-08-12 | 1996-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-10 | 1999-08-12 | 2000-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-10 | 2003-08-12 | 2004-02-11 | $7700.00 | Window Closed / Lapsed |